Multiple Choice
Identify the letter of the choice that
best completes the statement or answers the question.
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1.
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The
three most common atoms in your body are a. | hydrogen, oxygen, and carbon. | b. | carbon, hydrogen, and nitrogen. | c. | carbon, nitrogen, and oxygen. | d. | nitrogen, hydrogen, and oxygen. | e. | carbon, oxygen, and sulfur. | | |
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2.
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An
-NH2 group is a(n) __________ group. a. | carboxyl | b. | hydroxyl | c. | amino | d. | methyl | e. | ketone | | |
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3.
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The
formation of large molecules from small repeating units is known as what kind of
reaction? a. | oxidation | b. | reduction | c. | condensation | d. | hydrolysis | e. | decarboxylation | | |
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4.
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Which
is a monomer of carbohydrates? a. | glycogen | b. | nucleotide | c. | simple sugar | d. | monosaccharide | e. | both simple sugar and
monosaccharide | | |
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5.
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Fructose and glucose are a. | hexoses. | b. | structurally different. | c. | monosaccharides. | d. | simple sugars. | e. | all of these | | |
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6.
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Plants
store their excess carbohydrates in the form of a. | starch. | b. | glycogen. | c. | glucose. | d. | cellulose. | e. | fats. | | |
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7.
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Which
of these components of a tossed salad will pass through the human digestive tract with the least
digestion? a. | sugar (in the
dressing) | b. | oil
(lipid) | c. | starch (in the
croutons) | d. | cellulose
(lettuce leaves) | e. | protein (in bacon bits) | | |
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8.
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Which
of the following are lipids? a. | sterols | b. | triglycerides | c. | oils | d. | waxes | e. | all of these | | |
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9.
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The
sequence of amino acids is the __________ structure of proteins. a. | primary | b. | secondary | c. | tertiary | d. | quaternary | e. | stereo | | |
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10.
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Which
molecule is incorrectly matched with its component parts? a. | fat: fatty acids | b. | starch: riboses | c. | protein: amino acids | d. | glycogen: glucoses | e. | nucleic acids: nucleotides | | |
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11.
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The
first cell seen by Robert Hooke using a microscope was a a. | cork cell. | b. | blood cell. | c. | sperm cell. | d. | skin cell. | e. | root tip cell. | | |
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12.
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Which
of these cell features is absent in a bacterial cell? a. | plasma membrane | b. | nucleoid | c. | cytoplasm | d. | nucleus | e. | DNA | | |
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13.
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All
cells except bacteria a. | are eukaryotes. | b. | possess a nucleus. | c. | use organelles for
compartmentalization. | d. | possess a nucleus and use organelles for
compartmentalization. | e. | are eukaryotes, possess a nucleus, and use organelles for
compartmentalization. | | |
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14.
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If a
cell did not have ribosomes, it would be unable to a. | extract energy from glucose. | b. | synthesize glucose. | c. | store food in the form of fat. | d. | form proteins. | | |
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15.
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The
endoplasmic reticulum a. | serves as the internal transportation system of a
cell. | b. | is the inner
membrane of the mitochondria. | c. | is characterized by the presence of ribosomes
throughout. | d. | manufactures
ATP. | | |
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16.
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Which
of the following are sometimes referred to as rough or smooth, depending on the
structure? a. | Golgi
bodies | b. | ribosomes | c. | mitochondria | d. | lysosomes | e. | endoplasmic reticula | | |
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17.
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Starch
is stored in a. | plastids. | b. | vacuoles. | c. | lysosomes. | d. | microvilli. | e. | any of the above | | |
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18.
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The
"powerhouse" of the cell responsible for producing energy from the burning of glucose is
the: a. | mitochondrion | d. | Golgi body | b. | ribosome | e. | chloroplast | c. | plasma membrane | | | | |
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19.
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Which
of the following are found in both plant and animal cells? a. | nucleus, Golgi body,
chloroplasts | b. | ribosomes,
mitochondria, plasma membranes | c. | centrioles, cell walls,
nucleolus | d. | vacuoles,
nucleolus, starch grains | | |
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20.
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The
cell wall a. | provides skeletal
support for plants. | b. | controls what enters and leaves a
cell. | c. | replaces the
plasma membrane of animal cells in plant cells. | d. | is found in all eukaryotes. | | |
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21.
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Which
are examples of prokaryotes? a. | protozoa | b. | bacteria | c. | algae | d. | fungi | e. | mosses | | |
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Other
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22.
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Three
of the four answers listed below are saturated fats. Select the exception.
a. | butter | b. | bacon | c. | peanut oil | d. | animal fat | | |
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23.
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Four
of the five statements listed below are portions of a well-known theory. Select the
exception.
a. | Cells are the
structural and functional components of living things. | b. | Cells arise from preexisting
cells. | c. | All organisms are
composed of cells. | d. | Cells are the
basic living unit of organization of living things. | e. | All cells have a nucleus. | | |
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24.
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Four
of the five answers listed below are familiar organelles in the cytoplasm. Select the
exception.
a. | nucleolus | b. | mitochondrion | c. | ribosome | d. | Golgi body | e. | chloroplast | | |
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25.
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Four
of the five answers listed below are bound by membranes. Select the exception.
a. | mitochondrion | b. | ribosome | c. | chromoplast | d. | vacuole | e. | lysosome | | |
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